Overhead haulage carrier



Nov. 27,A 1928.

E. MILOTT OVERHEAD HAULAGE CARRIER Filed Sept 14. 1927 Sheets-Sheet l llfr INVENTOR.

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- Nom 27, 1928.

' E. MILCTTE OVERHEAD HAULAGE CARRIER Filed Sept. 14. 1927 2 sheets-Sheet 2 INVENTOR, E ZmoweMzia,

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Patented Nov. 27, i928.,V

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VApplication led September This invention relates to an overhead haub age carrier, and has for its object to provide, in a manner as hereinafter' set forth, a cars for expeditiously elevating and transporting a lo d in` suspended position Vfrom a loading point toa receiving pointk and for lowering the load for discharge at the receiving point,

A further object of the invention is to provide, in a nianneiaslieieinafter set forth, a

carrier for the purpose referred to including combined haulage and load carrying cable and means for latching said cable to provide for the suspension of the load andfor the haulage of the latter' by the cable.

Further objects ot the invention are to provide an overhead haulage carrier, yin a manner as hereinafter-set forth, and which comparatively simple in its construction and arrangement, strong, durable, compact, thoroughly eiiicient in itsuse, convenient-ly operated, and comparatively ineiipensive to up.` i

TWiththe foregoing andoother objects in view the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specilically described and illustrated in theaccoinpanying drawings, wherein is shown an embodiment `of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fallwithin the scope ofthe claims hereunto appended.

ln the drawings wherein like reference charactors denote corresponding parts thr`oughout-the several views:-

' l Figure l isa fragmentary view, inside elevation, of an overhead haulage carrier in,

accordance with this invention.V

Y Figure 2 is a fragmentary view, in longi-A tudinal section, illustrating the carriage and the latching means therefor 'and' further illustrating thelatching means and the combined haulage and load carrying -cable',

Figure 3 is a section on line 3-3Fig ure 2. y Y Y Figure 4 is a section on line 4 4, VFigure 2. f l

Figure 5 is a fragmentary view, in frontelevation, illustrating `one. ofl the latching members for the hauling cable and with said member in latching position.

VFigure 6 is a detail, in elevation, illustrating one of thelatching members of the haul- "ineinbers 7, 8

14, 1927. Serial No. 219,528.

age cable and with said member in non-latchingV position. y

An overhead haulage carrier, in accordance with this invention comprises an inclined traclr 1, formed-from a cable of the desired diameter and which is disposed at an inclination and has its upper` end coupled with the standards 2 of appropriate height as at 3. The lower end of the track 1 is anchored in any suitable manner and the anchoring of the lower endof the track 1 is not shown. Thatside of ti e standardsf, upon which is arranged the connection 3 for the track 1, has rotatably supported thereon a sheave l positioned a substantial distance above the connection 3. Gn the saine side of the standards 2, andbelowA the connection 3, a sheave 5 isA rotatably supported from said standards il, a' substantial distance below said connection 3.

A combined haulage and rload carrying cable is indicated at 6, and which travels over the she-ave 5 and said cable 6 winds onand oft a drum, not shown. The cable 6 has edly secured therewith a Vpair of stop arranged a substantial dis` tance from each other. l

rlravelliiig on the track 1 is a carriage referred to generally by the reference character 8 and which is formed of a pair of spaced rectangular side plates 9, 10 and a pair of end members 11, 12. Each end niember is of less height than theV height of the side plates. The end member 11 is formed with a pair of sections arranged in spaced.

relation to provide that end of the carriage 8, 'which' opposes t-he standards 2, with an opening 130i appropriate width. The end members 11, 12 are iiush with the bottom edges of the side plates 10, 9, but said niembers 11, 12 .have their upper ends spa-ceda substantial distancebelow 'the top edges of the plates 10, 9, thereby providing the top of each end of thecarriage 8 with an'opening 14, for the passage of the track 1. Secured to the side members 9,710 of the carriage 8, are transverse shafts 15, and upon each is rotatably mounted a groove pulley 16 which travels upon the track 1. The pulleys 16 oppose the openings 14, at the ends of the carriage 8, and said pulleys 16 are positioned in close proximity to said openings 14:, see Figure 2.1 Secured to the side plates 9, 10 of the carriage 8, at the lower portion thereof,

UNI

is a shaft 17, upon which is revolubly mounted a groove pulley 18 over which travels the haulage cable 6 and the latter extends through the opening 13 passes around the pulley 18 and depends from the bottom of the carriage 8. The bottom oit the carriage is open. The shalt l? is positioncd between theyert-ical median of the carriage 8 and the end member l2, but is nearer the Vertical median ofthe carriage 8 than to the end member l2. Arranged within the carriage 8 and positioned between the cranks pulley 18 and the end member l1, are spaced sets et transversely extendingv spaced stop bars. @ne set of stop bars is indicated at 19 and the other set at 20. The cable 6 passes between certain of the stop bars of each seu rlhe stop bars ot the 2O are arranged in proximity to the pulley 18. rlllie stops 7, 8'" carried by the cable 6 also pass between certain of v4the stop bars of each set, see ure 2.

Connected to the side members 9, l ot the carriage 8 are transverse shafts 2l, 22 arranged in parallel spaced relation and piv otally mounted upon the former is a bell crank 23 and upon the latter is a bell crank 24v. rlfhe arm 25 of the bell crank 23 is of greater lengt-h than tl arm QG ol such bell crank and the arm 27 of the bell crank 2lis oit Vgreater length than the arm 28 ot' such bell crank. The arms 25, 27 project a substantial distance above the side plates 9, l0 ol the carriage 8, and attached to the upper ends of the arm is a shifting cable 29 therefor and attached to the upper end of the arm 27 is a shifting' cable 30 theretor. `The cables 29, 30 extend a substantial distance below the carriage 8 so they can'be conveniently reached bythe operator. 'lhe arms 25, 28 are disposed at an inclination and projectfrom the arms 25, 27 respectively towards the end member ll of the carriage 8 andthe said arms 26, 2S are arranged over the sets of stop bars 19, 20 respectively. lllhe arms 25, 27 are the upper arms oi the bell 23, 24; respectively and the other arms 2G, 28 are the lower arms of the bell cranks 28, 24 respectively. llVith reference to Figs ure 5 the lower arm ot each bell crank is bifurcated, as indicated at 3l, and extending` into the urcation is the upper end 32 of a bil'urcated latchingI member and the bifurcation ot such member is indicated at 33, The latching` `member saddles the haull icable 6. The width ot the urcation in the latching member is materially less than the di` ameter of the stops, 7, 8 which are carried by thehaulage cable 6. The upper end 2 of the latchingmember is formed with a transversely extendingv opening; 34 through which extends, a pivot pin 35 for connecting` the latchinp; member to the lower arm oit a bell crank. rlhe latching' member which is carried by the lower arm 26 of one bell crank.

is indicated at 36 and the latehing member which is carried by the lower arm 28 of the other bell crank is indicated at 8.7; rlhe upper arms of the bell cranks project at a tore ward inclination from their low-er ends and towards the end member l2 oit the carriage S. The sets of stop bars, in connection with the members Btl., l? and be crairls 9.3, 2fl provide latching devices for stops of the haulage cable and the purpose for which the latehing devices are intended for will be hereinafter more fully ret :red to.

llixedly secured within the carriage o, and preiecting` through the opening` i3, a substantial distance above the haulage cable 5, is an arm 3?, provided with a 39, at its outer end Said arm 38 coacts 'ith a spring controlled latching mechanism l-or releasably retaining;v the carriage from movement ywhen the cari' is at the loading point. The latchin; mechanism comprises a housing,` 40, which is liriedly secured by the holdfast devices all, to the traclr l, in proximity to the upper end thereof, or above the loading1 point. 'lhe housing l0 depends from the tra-el; l, and has its bottom termed with ain openinfVy l2 and one end with an opening i3 fl "ough which is adapted to pass the arm 3S. e cured at one end, as etall, to the housing, is a resilient latching member' fl, prorided at its tree end with a nose do, which coacts with the nose tor releasably securing the c i je ina stationary position at the loading` porr arra ged within the housing,` l() and interposed between the top thereof and the hatching member 45, is a controlling springl a? for said member Connected to the bottom of the member 45, and ezri'eending1 through the opening l-Q, and Jurther depend-v ing a substantial distance below the housing LlO is a yoke flo, through which passes the haulage cable 6. The yoke d8 is piyotally connected as at e9, and has an angle shaped upper end 59 which provides means forshifting the member a5, cle-ar of the nose 39, when the yoke is moved to the dotted line position asshown in Figure 2. l. shitting,` cable 5l is provided'iior the yolrc ll-S and is of a length to be conveniently reached by the operator.A The carriage when moved'upwardly upon the track l.,Y is automatically.coupled with the latchingg` member 4&5, as the arm 38 mores into the housing 4;() through the opening; 43 rides against the nose 46 and after the nose clears the nose 4G, the act-ion of the -il-Z' will provide for the nose 4:9,- op- O the nose 39, whereby the carriage 8 i oe hitched :trom downward movement upon the tracltl.

Gonnected to thercarriage 8 is pulling` cable 5L therefor, which travels over a aair oit sheaves 58, supported in any Vsuitable manner at a desired disance `from the standards Vl`he cable. 52 also travels over the sheave l and winds and unwinds on the lOl) vpositions andthe load X in` four positions riage 8 Vand haulage 6` isfthc Vloading point4 and the full-line showing is the unloading point. Y A

Figure l illustrates the carriage .8 1n two 7 andthe positions of the load are indicated at A, B, C and D.; vSecured tort-he housing l0 vis an arm having a portion 54e thereof extending above and in parallel relation to the track l. Depending from the ylowerviace of the portion lis pair of stops55,.which are disposed at the same angle as the arms 25 and 27 of the bell; cranks 28 and 2a, and are spaced the same distance apart as said arms 25 and 27. ,Y A

In vthe operation of device, the carriage l8 is movedbyfmeans of the cable 52 to the positionshownin dotted lines in Fign urel; The cable 6 is' then positioned to have one end'thereof secured to the load X as indicated atfposition VAin Figure l; In this "position the-stop 8 will be located .be tween `the ,load X `and the carriage 8 and the stop'7 will be'locatedbetween ,the latch members 86andV 3720i.' the carriage 8. To

lift the load, the `carriage 8 is held in the position shown in dottedflines bythe cable 52 andpower is applied to the cable 6. `The latch member 36is raised by means of the cable 29 whichis secured tothe -arm25 of V the bell crank 28 to permit the stop 7 to pass said :latch member. `After the stop 7 hasV passed the latch member 86, the cable 29 is released, thereby permitting the latch member 86to fall by gravity into its normal position with its bifurcated end straddling the cable 6. Then the load X has been raised to the position shown at'position B in Figure l, the stop 8 will have passed into the carriage 8 to a position between the latch members V86 and 87. The stop 8 moves into this position by bearing on the face of the latch member 37, thereby causing said latch m'ember to swing on its pivot 85. As soon as the stop 8 has cleared the bifurcated end of the latch member 87, said :latch member `1s per- `mitted to fall by gravity `into normal position with its bifurcatedV end straddling the cable 6. I Y

t this point, the pressure exerted on t-he carriage 8 by the cable 52 is released, and a continuous pull on the cable 6 causes the carriage 8 to move along the track l towards the housing 40. The power is transmitted from the cable 6 to the carriage 8 to move the latteigdue to the corntactk oi the stop 8 The latch mem pivot 85 bythestopslQ which are disposed transversely of the carriage l8.

Tvlfhen the carriage .8 Vreaches the position shown in full lines in Figure l, the nose 89 of the arm 88 will have moved through the opening i8 in the housing fl() into engagement with the nose 46 ot the latching member 45 secured within the housing Ll0. Simultaneously with the latching of the arms 38 and' 45, the upper ends of the arms 25 and'27 ot the bell cranks 28 and 2li will have moved into forcible Contact with the stops vertically to the-position shown in full lines4 in `Figure 2. In this manner, the cable 6 is .automatically released relative to the carriage 8, thereby permitting the cable 6 to be drawn through the carriage 8 to lower the load X tothe position shown at position D in Figurel. ln this position, `both the stops 7 and 8 are positioned between the load and the carriage 8. When it is desired to return the carriage to loading position, the cable 6 ,is drawn through the carriage 8 for a proper Adistance to locate the stop 7 between the latch members 86 and 87. The carriage 8 may then be returned to loading position bymeans ofthe cable 52, after releasing the arms`88 `and l5 from engagement by means of the cablev 5l and yoke 48. llhen the carriage 8 starts to move along the track l towards the `loading position, the arms 25 andl 27 of the bell cranks 28 and 2lare immediately released from contact with membersw36 and87 to fall by gravity into their normal positions with their bifurcated ends straddling the cable 6, one or' said latch members being disposed on either side of the stop 7. `When the carriage 8 is being returned to loading position, relative movement between the cable 6 and the carriage 8 is prevented bythe engagement of the stop 7 with the latch member 36.

It will belnoted that the stops 7 and 8 may move into position between the latch members 86 and 37 from either direction, but are prevented from moving out of such position except by actuation of one of the bell cranks.

The lock can be operated by means of a power line attached to the arms of the lock by putting in a spiraljspring hea f v enough to carry the weight of the power line plus a slight strain and by having it thus the lock can be released any place on the sky line without havingto take the carriage to the holder vwhich would be better for some classes of work.v

It is thought that the many advantages of an overhead haulage carrier, in accordance with this invention and for the purpose rehaulage and load supporting` cable extend-- ing into and depending from said carria; e spaced stops secured to said cable. a pair of spaced latching' means Within'said carriage, means to provide i'or one ot' said stops to eoact with said latching means to maintain the load in a suspended position and for the propelling of the carriage in onedireetion from said cahle7 means to provide :tor the other of said stops to coact with said latching` means to maintain the load engaging end of the cable, when free of the load7 in an clevatedposition when the carriage is travelling in an opposite direction, and means for shifting` said carriage in said opposite direction. y

2. An overhead haulage carrier comprising a carriage, a track therefor, a combined haulage and load supporting cable extending` into and depending; from said carriage spaced stops secured to said cable7 a pair of spaced latching means Within said carriage, means to provide for one of said stops to coact-With said latching` meansto maintain the load in a suspended position and tor the propelling of the carriage in one direction from said cable, means to provide or the other of said stops to coact with said latching means to maintain the load engagdirection, means `for auton'iatieally latchin'zY said carriage stationary when it arrives at a point o t discharge tor the load, and means for automatically releasing` the cable to provide for the lowering` of the load when the arriagc arrives at the point of discharge for the load.

3. An overhead haulage carrier compris-V ing a carriage, a track thereforj a combined haulage and load supportingl cable extending into and depending from said carriage, spaced stops secured to said cable, a pair of' spaced latehing' means Within said carriaoje, means to provide for one of said stops to coact with said latching means to maintain the load in a suspended position and for the'propelling of the carriage' in one direction from said cable, means to provide for the other of said stops to Vcoast with said latehing' means to maintain the load engaging` end of the cable, When'free of the load, in an elevated position when the carriage is t'avelling in an opposite direct-ifm'7 means for shitting saidV carriage in said opposite direction, means for automatically latching said carriage stationary When Vit arrives at a point of discharge for the loach means tor automatically releasing` the cable to pros vide for theV lowering of the load When the carriage arrives at the point of discharge for the load, andl means for shitting` said latching means clear of said stop.

in testimony whereof l aihx mysignature hereto. y

ELMORE MLJOTTE. 

